31243773423 has 8 divisors (see below), whose sum is σ = 41659504128. Its totient is φ = 20828612504.

The previous prime is 31243773419. The next prime is 31243773461. The reversal of 31243773423 is 32437734213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31243773423 - 2² = 31243773419 is a prime.

It is a super-2 number, since 2×31243773423² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31243773023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8290 + ... + 250112.

It is an arithmetic number, because the mean of its divisors is an integer number (5207438016).

Almost surely, 2^31243773423 is an apocalyptic number.

31243773423 is a deficient number, since it is larger than the sum of its proper divisors (10415730705).

31243773423 is a wasteful number, since it uses less digits than its factorization.

31243773423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284893.

The product of its digits is 254016, while the sum is 39.

The spelling of 31243773423 in words is "thirty-one billion, two hundred forty-three million, seven hundred seventy-three thousand, four hundred twenty-three".